It may be obvious, but making bad choices can get you stuck in some bad situations. Sometimes when people do something, even if it's not bad, they dont consider what the consequences of thier actions may be. When you makes choices, knowing what the consequences may be can keep you out of some bad situations.
Answer:
They mention the siren and how they must be quiet because the the 'dawn patrol' aren't walking yet. When they left their living unit, Michael looked left and right, worried about the 'threat in the shadows.'
Explanation:
You can tell they seem a little fearful.